Like to see the option to have keyword and site filters on a per device basis. Currently any wireless device has unrestricted content access.
Many commerical routers have access to online black/white lists of sites and all access requests are checked against these - it could be a chargeable option for customers of say £5 per month
If BT does not want to have a similar agreement with one of these companies then an alternative is the abiity to set for each device an internal black/white and keyword filter list via the hub manager. That would not be hard to setup in the software as other companies have this feature.
Final option is more access control granularity so you can set times for each day (Mon 7am to 10am. Tue 8am to 11am) etc.